GB687886A - Improvements in and relating to electric circuit interrupters - Google Patents

Improvements in and relating to electric circuit interrupters

Info

Publication number
GB687886A
GB687886A GB29089/50A GB2908950A GB687886A GB 687886 A GB687886 A GB 687886A GB 29089/50 A GB29089/50 A GB 29089/50A GB 2908950 A GB2908950 A GB 2908950A GB 687886 A GB687886 A GB 687886A
Authority
GB
United Kingdom
Prior art keywords
arc
slots
barrier
contacts
path
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB29089/50A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US132258A external-priority patent/US2632826A/en
Application filed by British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB687886A publication Critical patent/GB687886A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/36—Metal parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/346—Details concerning the arc formation chamber
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/342—Venting arrangements for arc chutes

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Circuit Breakers (AREA)
  • Exhaust Silencers (AREA)

Abstract

687,886. Arc-rupturing in switches. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 28, 1950 [Dec. 10, 1949], No. 29089/50. Class 38 (v) In a switch having one or more arcing spaces bordered by plate-like barriers, each barrier has one or more slots arranged transversely to the arc path to prevent the forming of a conducting, path between the switch contacts when the surface of the barrier is heated to a high temperature by a heavy current arc. The Figures show the invention applied to the structure of Specification 589,277 in which moving contacts 11 co-operate with fixed contacts 14 in slots 21 formed between adjacent barrier plates 22 ... 24. Each barrier plate has a series of parallel slots 26 ... 29 extending transversely to the path of the adjacent arc drawn when the contacts separate, the slots being of sufficient length to extend across the high-temperature region adjacent the arc. Each plate has laterallyprojecting bosses 30, 31 which act as spacers and shroud clamping through-bolts 32, 33. Outer solid barrier plates 41, 42 enclose spaces 43, 44, which enable expansion of the arc gases through the slots 26 ... 29 in the end barrier plates 22, 24 and provide for increased turbulence of the gases as in the above Specification. A muffler 58, which may be that of Specification 687,897 may be provided to cool the arc gases, which are finally vented through a wire screen 61.
GB29089/50A 1949-12-10 1950-11-28 Improvements in and relating to electric circuit interrupters Expired GB687886A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US132258A US2632826A (en) 1949-12-10 1949-12-10 Arc quenching circuit interrupter
US140414A US2615109A (en) 1949-12-10 1950-01-25 Zigzag magnetic labyrinth arc muffler

Publications (1)

Publication Number Publication Date
GB687886A true GB687886A (en) 1953-02-25

Family

ID=26830219

Family Applications (2)

Application Number Title Priority Date Filing Date
GB29089/50A Expired GB687886A (en) 1949-12-10 1950-11-28 Improvements in and relating to electric circuit interrupters
GB1080/51A Expired GB687897A (en) 1949-12-10 1951-01-15 Improvements in and relating to electric circuit breakers

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1080/51A Expired GB687897A (en) 1949-12-10 1951-01-15 Improvements in and relating to electric circuit breakers

Country Status (3)

Country Link
US (1) US2615109A (en)
FR (1) FR1042680A (en)
GB (2) GB687886A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1063681B (en) * 1957-02-28 1959-08-20 Allis Chalmers Mfg Co Electric circuit breaker with an arc extinguishing chamber and means for cooling the arc exhaust products
DE1121160B (en) * 1954-12-30 1962-01-04 Siemens Ag Arc chamber with insulating material walls for low-voltage switchgear
US3257575A (en) * 1962-06-26 1966-06-21 Duncan Electric Co Inc Lightning arrester

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2861152A (en) * 1954-12-13 1958-11-18 Gen Electric Electric circuit interrupter
BE545609A (en) * 1955-08-29
US3106627A (en) * 1960-03-04 1963-10-08 Heinemann Electric Co Circuit breaker with arc chute assembly
US3033961A (en) * 1960-05-04 1962-05-08 Ite Circuit Breaker Ltd Serpentine corrugated arc product coolers
FR1435781A (en) * 1964-06-22 1966-04-22 Telemecanique Electrique Improvements to the contact poles of current breaking devices
US3440378A (en) * 1966-04-05 1969-04-22 Gen Electric Metal plate type of arc-extinguishing device
CH543174A (en) * 1971-09-30 1973-10-15 Carl Maier & Cie Elek Sche Sch Circuit breaker
BE795067A (en) * 1972-02-08 1973-05-29 Hazemeyer Sa ELECTRIC CURRENT INTERRUPTION DEVICE
US4554427A (en) * 1983-12-19 1985-11-19 Westinghouse Electric Corp. Molded case circuit breaker with movable lower electrical contact
FI87614C (en) * 1991-05-06 1993-01-25 Abb Stroemberg Saehkoenjakelu SLAECKNINGSANORDNING FOER LJUSBAOGE FOER EN KOPPLINGSAPPARATUR
DE10247378A1 (en) * 2002-10-10 2004-04-22 Moeller Gmbh Arc quenching device
WO2016197310A1 (en) * 2015-06-09 2016-12-15 伊顿电力设备有限公司 Electrical arc energy absorber used for switch cabinet

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2293513A (en) * 1939-10-11 1942-08-18 Gen Electric Electric air circuit breaker
US2337949A (en) * 1942-05-29 1943-12-28 Gen Electric Circuit breaker
US2442199A (en) * 1943-12-15 1948-05-25 Westinghouse Electric Corp Circuit interrupter
US2408352A (en) * 1944-03-24 1946-09-24 Gen Electric Gas cooling arrangement for circuit interrupters

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1121160B (en) * 1954-12-30 1962-01-04 Siemens Ag Arc chamber with insulating material walls for low-voltage switchgear
DE1063681B (en) * 1957-02-28 1959-08-20 Allis Chalmers Mfg Co Electric circuit breaker with an arc extinguishing chamber and means for cooling the arc exhaust products
US3257575A (en) * 1962-06-26 1966-06-21 Duncan Electric Co Inc Lightning arrester

Also Published As

Publication number Publication date
FR1042680A (en) 1953-11-03
GB687897A (en) 1953-02-25
US2615109A (en) 1952-10-21

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